3)
7168
divisible by 2 because the last digit is divisible by 2
NOT divisible by 3 because the sum of its digit (22) is not a multiple of 3
divisible by 4 because the last 2 digits (68) are divisible by 4
NOT divisible by 5 because the last digit (8) is neither 0 nor 5
NOT divisible by 6 (to be divisible y 6, it should be divisible by 2 and 3)
divisible by82 because the last 3 digits (168) ae divisible by 8
NOT divisible by 9 because the sum of its digit (22) is not a multiple of 9
NOT divisible by 10 because the last digit (8) is not 0
Having written the rules, you can easily apply them to solve the last 2 exercices.
Answer:
4.39 to 2DP.
Step-by-step explanation:
x * (x - 2) = 28
x^2 - 2x = 28
Solving by completing the square:
(x - 1)^2 - 1 = 28
(x - 1)^2 = 29
x = +/-√29 + 1
x = 6.38516, -4.38516
x must be positive so it = 6.38516.
The shortest side = x - 2 = 4.385.
Answer:
[A] use the complementary relationship between sine and cosine to rewrite sin(x + y) as cos(pi/2-(x+y)). apply the cosine sum identity. then simplify using sin(–y) = –sin(y) and cos(–y) = cos(y).
Step-by-step explanation:
i got it right
screw that other person l0l
note that sin(-x)=-sin(x) and cos(-x)=cos(x)
so sin(-y)=-sin(y) and cos(-y)=cos(y)
or something like that idfk
I’ll get you some help, give me on second